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Cattle breeding in Madhya Pradesh - a genetic appraisal


, : Cattle breeding in Madhya Pradesh - a genetic appraisal. Indian Veterinary Medical Journal 3(4): 242-247

For Gir, Sahiwal, Red Sindhi, Tharparkar, Haryana and Malvi cows (80-508 observations per breed) on farms in Madhya Pradesh, 1st-lactation milk yield (CV% in brackets) averaged 1567.40 (24.70), 1162.69 (44.92), 1048.31 (50.57), 912.99 (52.80), 1137.20 (43.42) and 629.20 kg (39.00) resp., 1st lactation length 312.47 (30.59), 288.58 (27.63), 275.10 (31.23), 240.25 (27.75), 265.08 (25.80) and 304.09 days (23.60), and 1st dry period 150.5 (53.95), 132.40 (72.34), 163.48 (53.02), 186.08 (45.86), 179.44 (45.43) and 228.35 days (55.21). The h2s of milk yield, lactation length and dry period were 0.07-0.39, 0.22-0.58 and 0.07-0.12 resp. Analysis of variance revealed a significant effect of lactation number on the duration of the dry period only for Gir and Haryana cows. For Gir cows, genetic and phenotypic correlations between lactation milk yield and lactation length were 0.89 and 0.43 resp., and those between 1st dry period and 2nd-lactation yield -0.79 and 0.08.

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